Tomsline ATR-3 Twister, Analog Flanger Pedal Go to amazon.com Related posts Best flanger pedal boss for 2022 FeatureAnalog flangerColor, range and speed control2 options of freeze and normalTrue bypassPower supply: DC 9V adapter (not included) DescriptionAnalog Flanger Pedal. Color, range and speed control. 2 options of freeze and normal. True bypass. Power supply: DC 9V adapter (not included).